nuclear-powered ship

(idiomatic) godsend, lifesaver

outside of a 船 – boat (船), spaceship (宇宙船), etc.

Suspicious seacraft. The DPRK (North Korea) especially has a habit of iilegally trespassing into Japanese waters.

tour boat

A spy. Especially, during the Warring States Period, a brigand recruited by a daimyō to work as a spy. / A ruffian.

Ningbo (a port-city, a subprovincial city in Zhejiang, China)

(physics) a microwave

(oceanography) tidal wave (crest of ocean water resulting from tidal forces)

a female given name